Description
Detailed Parameter Table
| Parameter name | Parameter value |
|---|---|
| Product model | DC‑PDOD51 |
| Manufacturer | Honeywell |
| Product category | Digital Output Module (24 V bussed) |
| Number of channels | 32 channels |
| Output type | Sinking (open‑collector / s ink type) 24 V DC |
| Maximum load current per channel | 0.1 A (100 mA) |
| Load voltage range | 15 V to 30 V DC typical |
| Isolation (system to field) | 1,000 VAC RMS |
| Turn‑on / turn‑off time | ≤ 10 ms |
| Off‑state leakage current | ≤ 100 µA |
| Operating temperature | –40 °C to +70 °C |
| Mounting form | I/O module for Experion Series‑C I/O shelf |
Product Introduction
The Honeywell DC‑PDOD51 is a 32‑channel bussed digital output module designed for use in Honeywell’s Experion® Series‑C I/O system. It provides sinking (sink‑type) 24 V DC outputs to drive field devices such as valves, relays, alarms, and other actuators from a shared 24 V bus. The module integrates into the I/O shelf infrastructure and communicates with the master controller system to execute discrete output commands with high reliability.
In the control architecture, DC‑PDOD51 interfaces between process logic and field devices. When the controller signals a discrete output, the module sinks current from the 24 V bus through the activated channel to ground, enabling modular and efficient output operations. Its design supports common bus wiring, reducing field cable count, while maintaining isolation and protection between logic and field circuits.
Because DC‑PDOD51 is built for industrial environments, it holds strong environmental ratings and diagnostic capability. It supports worst-case conditions across a broad temperature range, supports internal diagnostics such as short‑circuit detection, and aligns with the engineering philosophy of modular, maintainable plant instrumentation systems.
Core Advantages and Technical Highlights
High channel density
With 32 output channels in one module, DC‑PDOD51 maximizes I/O density and reduces rack footprint, simplifying system layout while maintaining extensive output coverage.
Bussed 24 V architecture
Rather than each output requiring its own isolated supply, the bussed design enables common sourcing of 24 V, simplifying power distribution and reducing wiring complexity in field installations.
Reliable diagnostics and protection
Each channel is electronically protected for overcurrent, and the module may support internal fault reporting, allowing early detection of field wiring or device failures without compromising other outputs.
Stable timing performance
The module offers turn‑on and turn‑off times of up to 10 ms, suitable for many control and actuation tasks where deterministic behavior is required.
Robust isolation
With 1,000 VAC RMS isolation between system logic and field circuits, DC‑PDOD51 ensures that control electronics are protected from field transients and noise, improving system durability.
Wide environmental tolerance
Operating across –40 °C to +70 °C, the module is suitable for a broad range of industrial and remote installations, ensuring dependable performance under harsh ambient conditions.
Seamless integration into Experion systems
As part of the Series‑C I/O family, DC‑PDOD51 is engineered for plug‑and‑play installation, parameter configuration via the control software, and compatibility with redundant or safety I/O strategies.
Typical Application Scenarios
The DC‑PDOD51 is suited for process industries and automation systems where digital control outputs are essential:
- Valve control in chemical, petrochemical or refining systems: actuate valves via 24 V DC solenoids.
- Alarm and notification systems: trigger alarms, horns or indicators based on process states.
- Actuator control: drive auxiliary devices such as fans, pumps or dampers.
- Safety interlocks: perform controlled shutdown or safe-state transitions via discrete outputs.
- Retrofit and expansion: add or replace digital output capacity in existing Experion installations with a modular, compatible module.
In these roles, DC‑PDOD51 enhances control reliability, simplifies wiring, and strengthens diagnostic capability.
Related Model Recommendations
- CC‑PDOB01 – Digital output module with sourcing (source type) architecture as an alternative to sinking output type.
- CC‑PDOD51 – Redundant or alternate version of PDOD51 in Series‑C I/O lines.
- CC‑PDIL51 – Companion digital input module for 24 V DC signals, used alongside DC‑PDOD51 in discrete I/O systems.
- CC‑PAON01 – Analog output module in the same Series‑C I/O family for 4–20 mA actuator control.
- CC‑PUIO01 – Universal I/O module supporting mixed digital and analog I/O in the same slot.
These modules are part of the Experion I/O ecosystem and often coexist in the same rack or shelf infrastructure.
Service and Guarantee Commitment
Honeywell ensures that each DC‑PDOD51 module undergoes exhaustive factory tests including channel functionality, isolation, timing, and alignment to specifications. The module is backed by a warranty covering defects in materials and workmanship for a defined period. Honeywell’s global service network offers calibration, module replacement, firmware support, and integration assistance. With modular architecture and long-term support, DC‑PDOD51 delivers reliable and maintainable digital output capability in industrial control systems.
ASEA BROWN BOVERI E-32235 USPP E32235
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